Bounded Generalized Kelly Mechanism for Multi-Tenant Caching in Mobile Edge Clouds

Mobile edge computing represents a promising paradigm for 5G telecommunication operators. Among various services that can be provided by this technology, cloud edge caching is receiving increasing attention by network providers. By using cloud technology, in particular, the memory space of mobile edge network devices can be provisioned to OTT content providers over specific areas. They can use cache space in order to serve their customers with improved quality of service figures. We study a competitive scheme where contents are dynamically stored in the edge memory deployed by the network provider. OTT content providers are subject to Kelly mechanism with generalized cost and with bounded strategy set. After proving the uniqueness of the Nash equilibrium of such scheme, a simple bisection algorithm for its calculation is provided. Numerical results characterize the Nash equilibrium.